21910438

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2447}}^1$

素因数の和:2508

約数の個数: 24

約数和(自身を含む): 37116576

約数和(自身を除く): 15206138

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2447, 4477, 4894, 8954, 26917, 53834, 90539, 181078, 296087, 592174, 995929, 1991858, 10955219, 21910438]

約数ペア:

[(1, 21910438), (2, 10955219), (11, 1991858), (22, 995929), (37, 592174), (74, 296087), (121, 181078), (242, 90539), (407, 53834), (814, 26917), (2447, 8954), (4477, 4894)]